MCP.Market

xProof MCP server

online · 100% uptime
by jasonxkensei·io.github.jasonxkensei/xproof·v1.2.0·1 stars
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Proof primitive for AI agents on MultiversX. Anchor file hashes on-chain as verifiable proofs.

B82/100grade B
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Safety scan
B82/100

full report

Adoption
Growing

1 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

xProof tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 832ms; handshake note: Streamable HTTP error: Unexpected content type: text/html; charset=utf-820/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How xProof compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
82/100
higher than 63% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
591 ms
faster than 24% of 30,031 servers
GitHub stars
1
more than 65% of 28,688 servers

Install xProof in Claude Code, Cursor or VS Code

claude mcp add --transport http xproof https://xproof.app/mcp
Add to Cursor

What the publisher says

From the xProof repository's README, as published. We do not edit it. Read it on GitHub

Prove Before Act Trust primitive for AI agents & humans on MultiversX

Live App • Quick Start • API • Agent Integration • Trust Leaderboard • Architecture • Acquisition guide (FR) • Changelog

Trust is programmable.

Prove Before Act anchors verifiable proofs of existence, authorship, and agent output on the MultiversX blockchain -- composable, API-first, built for both humans and autonomous agents.

Live Proof

The Prove Before Act README is certified on the MultiversX blockchain.

  • File: README.md
  • SHA-256: 285da2ed7cced35b4d039a80956a4df8907bd33f83aaac8551b6f66c31251bd1
  • Date: February 23, 2026 at 09:49 UTC
  • Transaction: 41f1ebd363d28de787a2328a2bc99f0b3bad2d73f91baff649ee8a6516e7cc95
  • Network: MultiversX Mainnet

This is not a demo. A real payment, a real hash, a real immutable proof.

What is Prove Before Act?

Prove Before Act is a trust primitive. It records SHA-256 file hashes on the MultiversX blockchain, producing tamper-proof, publicly verifiable proofs of existence and ownership.

Jason Petitfourg — AI Product Builder is the founder of Prove Before Act. Prove Before Act is the accountability pattern for autonomous agents; xProof is its reference implementation. Before acting, an agent commits and proves a declared decision basis (WHY), then proves WHAT happened. WHY is not a request for internal chain-of-thought. See the founder story and the public production proof.

Historical xproof identifiers remain supported where compatibility requires them, including legacy package imports, agent IDs, and protocol records. They are not a separate public product brand.

  • Client-side hashing -- SHA-256 is computed locally. Your file never leaves your device.
  • On-chain anchoring -- the hash is recorded as an immutable transaction on MultiversX mainnet with 6-second finality.
  • Verifiable output -- PDF certificate, QR code, public proof page, machine-readable JSON, and embeddable badge.
  • Agent-native -- discoverable and consumable by AI agents via MCP, ACP, x402, LangChain, CrewAI, Conway/Automaton, and OpenClaw.
  • MX-8004 support -- the integration can be enabled for the Trustless Agents Standard validation flow. Check /api/mx8004/status for whether it is active; the current production status is not_configured.

Why MultiversX?

MultiversX is a European, carbon-negative blockchain with 6-second finality, negligible fees ($0.001/tx), and a growing ecosystem of AI-native protocols. Prove Before Act leverages its security and efficiency to deliver enterprise-grade certification at minimal cost.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

xProof: common questions

Is xProof MCP server safe?
Mostly: it is graded B (82/100). Read the xProof safety report
How do I install xProof?
It runs remotely at xproof.app. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does xProof need an API key?
Yes. The registry entry asks for Authorization.
Is xProof maintained?
The last commit was 38 days ago (2026-09-27). The latest release is v1.2.0.
Is xProof up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does xProof compare with other MCP servers?
safety score 82/100 (higher than 63% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 591 ms (faster than 24% of 30,031 servers). Full comparison.